I have a 2009 Silverado that I would like to get a tuner for but I was told that the dealer or Onstar diagnostics can detect this, is this true?
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I have a 2009 Silverado that I would like to get a tuner for but I was told that the dealer or Onstar diagnostics can detect this, is this true?
Not sure about detection but when I plugged in my old programmer into the OBDII port, my vehicle diagnostic emails were all jacked up saying it couldn't communicate with the vehicle. On another note, I seriously doubt the people at OnStar have the personnel to be checking every OnStar-equipped vehicle for after market no-nos.
I would think that a live tune (or at least a mail-oreder tune) wouldn't be detectable...but don't quote me on that. Maybe someone else can chime in...
my 08' is doing fine with m/o tune
I think if they are really looking for it, they can find it.
Plus, something about the number of times a pcm is flashed as well.
Yes It Leaves What Is Called A "footprint" In The Computer.
why would on star even be interested in such a thing? i mean isnt it intended for help and service to those that need it, who cares if your shit it tuned? maybe except for the dealer after blowing a tranny or killing the motor or some such thing.
Quote:
Originally Posted by 6gear
my 09 is tuned and its been to the dealer twice, the dealer can detect it but why would on star even wanna know?
there is a history of the pcm in the computers. it shows everything you have done to that pcm. even the 411 pcms show that. so yes its trackable
years ago there was a story of a z06 that went in for hurt motor. they had found out teh tune was the cause and didnt warrenty the bill. owner had something like 15k bill handed to him.
makes you think twice about who you chose to do a tune for ya
That's why I kept my stock PCM and tuned my spare PCM. I just re-installed the stock PCM for trips to the stealership.
I know some tuners claim to have "stealth" tunes that can not be detected.
I'm a tech at a gm dealer and it easy to find tunes but to this point the only prob we have ran into is if there is a module update and the module is locked (warrenty reasons only) or on dirtymax's max torque output is stored and we can tell if a tuner has been on the vehicle. this is only a problem when the engine is f'ed and go to warrenty the engine and gm requires a snapshot of the vin and max torque out from a tech2
otherwise no one at the dealership cares just if GM is going to warrenty the pcm or an engine